REFLD002

Reference Design

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REFLD002
Laser Driver Reference Design with GaN HEMT for High-Resolution LiDAR

  • EcoGaN Logo

Summary

The range of uses for LiDAR sensors is expanding to include not only autonomous driving, but also applications in the industrial and infrastructure fields.
LiDAR sensors are required to have longer sensing distance and higher resolution, and in addition to improving the characteristics of the laser diode, it is necessary to drive the laser diode at higher speeds and power.
ROHM offers a lineup of 905nm high power narrow emission width laser diodes. (RLD90QZWx Series)
Reference designs are available that includes EcoGANTM, a next-generation device capable of high-speed drive, along with a high-speed gate driver for GaN HEMTs that contribute to improved LiDAR sensor characteristics (distance and resolution).

Feature

  • Enables high-speed driving of laser diodes - a key device in LiDAR applications
  • Includes next-gen EcoGaNTM devices
  • Built-in high-speed gate driver for GaN HEMTs (BD2311NVX-C)
  • Two circuit types: square wave and resonant

Application Example

Specification

Reference Design Part No.REFLD002-1REFLD002-2
Design BriefREFLD002 Board Summary
Board Part No.S WAVE B-01R WAVE B-01
Circuit TypeSquare waveResonant
Input Voltage 1 (Laser Diode Drive)~60V~120V
Input Voltage 2 (Gate Driver)5V
Laser PowerTBD
Switching Frequency0.1 to 0.5KHz0.1 to 100kHz
Onboard DevicesLaser DiodeRLD90QZW8RLD90QZW3
EcoGaN™GNE1040TB
Gate DriverBD2311NVX-C
Reverse Current Protection DiodeRF05VAM2S
Shunt ResistorLTR10 Series

REFLD002-1 Square wave

Product in refDesign and related contents

Product nameStatusDatasheetSpecificationSample
RLD90QZW8under developmentPDF905nm 120W Narrow Emission Width Laser DiodeBuy
GNE1040TBRecommended ProductsPDFEcoGaN™ GaN HEMT 150V, 40mΩContact Us
BD2311NVX-Cunder developmentGaN HEMT High-Speed Driver IC-
RF05VAM2SRecommended ProductsPDFReverse Current Protection Fast Recovery DiodeBuy
LTR10Recommended ProductsPDFCurrent Sense Shunt ResistorBuy

*Application notes, model libraries, PCB libraries, and other contents can be downloaded from the individual product pages

Reference Board Image

Reference Board Image

ROHM Solution Simulator

*Registration to MyROHM is required

Evaluation data

Coming Soon

Design files

REFLD002-2 Resonant

Product in refDesign and related contents

Product nameStatusDatasheetSpecificationSample
RLD90QZW3Recommended ProductsPDF905nm 75W Narrow Emission Width Laser DiodeBuy
GNE1040TBRecommended ProductsPDFEcoGaN™ GaN HEMT 150V, 40mΩContact Us
BD2311NVX-Cunder developmentGaN HEMT High-Speed Driver IC-
RF05VAM2SRecommended ProductsPDFReverse Current Protection Fast Recovery DiodeBuy
LTR10Recommended ProductsPDFCurrent Sense Shunt ResistorBuy

*Application notes, model libraries, PCB libraries, and other contents can be downloaded from the individual product pages

Reference Board Image

Reference Board Image

ROHM Solution Simulator

*Registration to MyROHM is required

Evaluation data

Coming Soon

Design files

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